Martin S Fischer
Datos Biográficos
| ID | 3658784 |
|---|---|
| NOMBRE | Martin S Fischer |
| NOMBRES | Martin S |
| APELLIDO | Fischer |
| FIRMA | FISCHER M S |
| AFILIACIONES | Friedrich Schiller University Jena |
| ORCID | 0000-0002-9038-6773 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 8 |
| TOTAL DE CITAS | 23 |
| TOTAL COMO AUTOR | 8 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1994 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2023 |
| ÍNDICE H | 2 |
Human populations are not biologically and genetically discrete
Science relies on the validity of concepts, especially when these come from other disciplines. The differentiation of human groups according to phenotypic appearance, for example the colour of their skin, seemed so obvious that after centuries only genetics could fundamentally revise this concept. For 50 years, attempts have been made to break away from racial categorization, among others in the recent Jena Declaration of 2019 (Fischer et al., 20…
Gait parameter adjustments of cotton‐top tamarins ( Saguinus oedipus , Callitrichidae) to locomotion on inclined arboreal substrates
The influence of different substrate inclinations on gaits and metric gait parameters (relative forelimb and hind limb protraction, relative forelimb, and hind limb retraction, stride length, stance, and swing phase duration) of cotton‐top tamarin locomotion was studied using high‐speed video films and evaluated by descriptive and analytical statistical methods. As previously shown, lateral sequence gaits predominantly occurred on descending arbo…
Shoulder movements during quadrupedal locomotion in arboreal primates
The kinematics of scapula and shoulder joint movements were analyzed in three species of arboreal quadrupedal primates using cineradiography. Our findings indicate that scapular movement is highly important for forelimb movement in primates with this ancestral mode of locomotion. Retroversion of the scapula (syn. caudal rotation or extension) during the stance phase contributes more than 40% to the stride length of the forelimb. Lateral forelimb …
The importance of the evolutionary heritage of locomotion on flat ground in small mammals for the development of arboreality
The earliest representatives of the mammalian stem line were small. Recent small mammals preserving their morphology possess rather similar kinematic and dynamic locomotor patterns, even if they are not closely related. For a small animal, the mechanics of locomotion on a large branch is comparable to locomotion on flat ground. Combining these informations, it seems sensible to start a discussion on the origins of arboreality with a detailed anal…
Cineradiographic study of forelimb movements during quadrupedal walking in the brown lemur (Eulemur fulvus, primates
Movements of forelimb joints and segments during walking in the brown lemur (Eulemur fulvus) were analyzed using cineradiography (150 frames/sec). Metric gait parameters, forelimb kinematics, and intralimb coordination are described. Calculation of contribution of segment displacements to stance propulsion shows that scapular retroversion in a fulcrum near the vertebral border causes more than 60% of propulsion. The contribution by the shoulder j…
Cineradiographic study of forelimb movements during quadrupedal walking in the brown lemur (Eulemur fulvus, primates
Movements of forelimb joints and segments during walking in the brown lemur (Eulemur fulvus) were analyzed using cineradiography (150 frames/sec). Metric gait parameters, forelimb kinematics, and intralimb coordination are described. Calculation of contribution of segment displacements to stance propulsion shows that scapular retroversion in a fulcrum near the vertebral border causes more than 60% of propulsion. The contribution by the shoulder j…
The design of technical artifacts with regard to work experience
Crouched posture and high fulcrum, a principle in the locomotion of small mammals
Gait parameter adjustments of cotton‐top tamarins ( Saguinus oedipus , Callitrichidae) to locomotion on inclined arboreal substrates
The influence of different substrate inclinations on gaits and metric gait parameters (relative forelimb and hind limb protraction, relative forelimb, and hind limb retraction, stride length, stance, and swing phase duration) of cotton‐top tamarin locomotion was studied using high‐speed video films and evaluated by descriptive and analytical statistical methods. As previously shown, lateral sequence gaits predominantly occurred on descending arbo…
Crouched posture and high fulcrum, a principle in the locomotion of small mammals
Crouched posture and high fulcrum, a principle in the locomotion of small mammals
The design of technical artifacts with regard to work experience
Cineradiographic study of forelimb movements during quadrupedal walking in the brown lemur (Eulemur fulvus, primates
Movements of forelimb joints and segments during walking in the brown lemur (Eulemur fulvus) were analyzed using cineradiography (150 frames/sec). Metric gait parameters, forelimb kinematics, and intralimb coordination are described. Calculation of contribution of segment displacements to stance propulsion shows that scapular retroversion in a fulcrum near the vertebral border causes more than 60% of propulsion. The contribution by the shoulder j…
Cineradiographic study of forelimb movements during quadrupedal walking in the brown lemur (Eulemur fulvus, primates
Movements of forelimb joints and segments during walking in the brown lemur (Eulemur fulvus) were analyzed using cineradiography (150 frames/sec). Metric gait parameters, forelimb kinematics, and intralimb coordination are described. Calculation of contribution of segment displacements to stance propulsion shows that scapular retroversion in a fulcrum near the vertebral border causes more than 60% of propulsion. The contribution by the shoulder j…
Shoulder movements during quadrupedal locomotion in arboreal primates
The kinematics of scapula and shoulder joint movements were analyzed in three species of arboreal quadrupedal primates using cineradiography. Our findings indicate that scapular movement is highly important for forelimb movement in primates with this ancestral mode of locomotion. Retroversion of the scapula (syn. caudal rotation or extension) during the stance phase contributes more than 40% to the stride length of the forelimb. Lateral forelimb …
The importance of the evolutionary heritage of locomotion on flat ground in small mammals for the development of arboreality
The earliest representatives of the mammalian stem line were small. Recent small mammals preserving their morphology possess rather similar kinematic and dynamic locomotor patterns, even if they are not closely related. For a small animal, the mechanics of locomotion on a large branch is comparable to locomotion on flat ground. Combining these informations, it seems sensible to start a discussion on the origins of arboreality with a detailed anal…
Gait parameter adjustments of cotton‐top tamarins ( Saguinus oedipus , Callitrichidae) to locomotion on inclined arboreal substrates
The influence of different substrate inclinations on gaits and metric gait parameters (relative forelimb and hind limb protraction, relative forelimb, and hind limb retraction, stride length, stance, and swing phase duration) of cotton‐top tamarin locomotion was studied using high‐speed video films and evaluated by descriptive and analytical statistical methods. As previously shown, lateral sequence gaits predominantly occurred on descending arbo…
Human populations are not biologically and genetically discrete
Science relies on the validity of concepts, especially when these come from other disciplines. The differentiation of human groups according to phenotypic appearance, for example the colour of their skin, seemed so obvious that after centuries only genetics could fundamentally revise this concept. For 50 years, attempts have been made to break away from racial categorization, among others in the recent Jena Declaration of 2019 (Fischer et al., 20…
Biology (7 obras) · Anatomy (6 obras) · Physics (6 obras) · Forelimb (5 obras) · Kinematics (5 obras) · Anatomy (4 obras) · Medicine (4 obras) · Physical medicine and rehabilitation (4 obras) · Primate Behavior and Ecology (4 obras) · Quadrupedalism (4 obras)